用DSP实现三相SPWM波形设计

本文叙述了三相全桥电压型逆变器SPWM生成方法,介绍了TI公司的控制用芯片TMS320F2812,描述了使用时间管理器EV生成三相对称SPWM的方法。最后给出实验波形,结果表明,输出波形光滑,失真率低。

This paper introduced method to generate the three-phase full-bridge voltage inverter SPWM Modulation principle and TMS320F2812 chip. It described the use EV generates three-phase SPWM mothod.Finally the experimental results were illustrated, the output waveform is smooth and scale distortion is low.